| Parameter | Type | Default | Description |
| --- | --- | --- | --- |
| `bucket_name` | `str` | - | Name of the GCS bucket containing the file. |
| `blob_name` | `str` | - | Name of the blob (file) within the bucket. |
| `prefix` | `Optional[str]` | - | Path prefix for organizing files in the bucket. |
| `bucket` | `Optional[Any]` | - | Pre-configured GCS bucket object. |